Following Sen. Gary Peters' retirement from his Class I seat, Michigan's open Senate race in this swing state pits GOP frontrunner former Rep. Mike Rogers against a crowded Democratic primary led by Abdul El-Sayed, Haley Stevens, and Mallory McMorrow ahead of the August 4 primaries. Recent Glengariff (April 28–May 1) and Mitchell Research (May 1–7) polls show Rogers holding narrow leads of 2–5 points over top Democrats in general election matchups, aligning with RealClearPolitics' tie average. Yet trader consensus prices Democrats at 75.5% implied probability to win in November, diverging from polls amid superior Democratic fundraising—Stevens raised $8.9 million by March—key endorsements, and historical midterm advantages for the out-party in battleground states.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMichigan Senate Election Winner
Michigan Senate Election Winner
$112,800 Vol.
$112,800 Vol.

Democrat
76%

Republican
26%
$112,800 Vol.
$112,800 Vol.

Democrat
76%

Republican
26%
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Market Opened: Oct 13, 2025, 5:07 PM ET
Resolver
0x2F5e3684c...A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Resolver
0x2F5e3684c...Following Sen. Gary Peters' retirement from his Class I seat, Michigan's open Senate race in this swing state pits GOP frontrunner former Rep. Mike Rogers against a crowded Democratic primary led by Abdul El-Sayed, Haley Stevens, and Mallory McMorrow ahead of the August 4 primaries. Recent Glengariff (April 28–May 1) and Mitchell Research (May 1–7) polls show Rogers holding narrow leads of 2–5 points over top Democrats in general election matchups, aligning with RealClearPolitics' tie average. Yet trader consensus prices Democrats at 75.5% implied probability to win in November, diverging from polls amid superior Democratic fundraising—Stevens raised $8.9 million by March—key endorsements, and historical midterm advantages for the out-party in battleground states.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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